When she was just twenty-three years old, Vera Maria Rosenberg was recruited by spymaster "Intrepid" to embark on risky espionage missions. When World War II broke out in 1939, she enlisted in Winston Churchill's covert intelligence agency, where she trained hundreds of agents and infiltrated enemy lines. Living an extraordinary life, Vera's fearless spirit saved thousands of lives. Author William Stevenson promised to wait until she died to publish her biography—and her incredible true story was certainly worth the wait!